Table 1.

The absorbance of AFLs and STC individual standard solutions.

Mycotoxin	Solvent	Conc., μg/mL	λmax/λref., nm	A (Average, n = 3)
				Fresh	10 Months	14 Months
AFL B1	MeOH	1	360/400	0.07	0.07	0.07
AFL B2	MeOH	1	360/400	0.08	0.08	0.08
AFL G1	MeOH	1	365/280	0.05	0.05	0.05
AFL G2	MeOH	1	365/280	0.05	0.05	0.05
STC	MeOH	21.5	325/280	0.86	0.83	0.85

MeOH—methanol, AFL—aflatoxin, STC—sterigmatocystin.